Global Patent Index - EP 0937018 A1

EP 0937018 A1 19990825 - PROCESS FOR PREPARING 2-METHYL-4-(2,2,3-TRIMETHYL-CYCLOPENT-3-EN-1-YL)-BUT-2-EN-1-OL

Title (en)

PROCESS FOR PREPARING 2-METHYL-4-(2,2,3-TRIMETHYL-CYCLOPENT-3-EN-1-YL)-BUT-2-EN-1-OL

Title (de)

VERFAHREN ZUR HERSTELLUNG VON 2-METHYL-4-(2,2,3-TRIMETHYL-CYCLOPENT-3-EN-1-YL)-BUT-2-EN-1-OL

Title (fr)

PROCEDE DE PREPARATION DE 2-METHYLE-4-(2,2,3-TRIMETHYLE-CYCLOPENT-3-ENE-1-YLE)-BUT-2-ENE-1-OL

Publication

EP 0937018 A1 19990825 (DE)

Application

EP 97945839 A 19971015

Priority

  • DE 19644250 A 19961024
  • EP 9705689 W 19971015

Abstract (en)

[origin: US6028231A] PCT No. PCT/EP97/05689 Sec. 371 Date Apr. 20, 1999 Sec. 102(e) Date Apr. 20, 1999 PCT Filed Oct. 15, 1997 PCT Pub. No. WO98/17613 PCT Pub. Date Apr. 30, 1998A process to obtain 2-methyl-4-(2, 2, 3-trimethyl-cyclopent-3-en-1-yl)-but-2-en-1-ol by reacting campholene aldehyde and propionaldehyde via aldol condensation and further subjecting the resulting reaction mixture to Meerwein-Ponndorf reduction with aluminum alcoholates in the presence of a basic amine compound.

IPC 1-7

C07C 29/14; C07C 33/12; C07C 45/74; C07C 47/225

IPC 8 full level

A61K 8/34 (2006.01); A61K 8/33 (2006.01); A61Q 13/00 (2006.01); C07B 61/00 (2006.01); C07C 29/14 (2006.01); C07C 33/12 (2006.01); C07C 45/74 (2006.01); C07C 47/225 (2006.01)

CPC (source: EP US)

C07C 29/14 (2013.01 - EP US); C07C 45/74 (2013.01 - EP US); C07C 47/225 (2013.01 - EP US); C12C 11/02 (2013.01 - EP US); C07C 2601/06 (2017.04 - EP US)

Citation (search report)

See references of WO 9817613A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

DOCDB simple family (publication)

US 6028231 A 20000222; AT E204841 T1 20010915; DE 19644250 A1 19980430; DE 59704475 D1 20011004; DK 0937018 T3 20011217; EP 0937018 A1 19990825; EP 0937018 B1 20010829; ES 2162328 T3 20011216; JP 2001502679 A 20010227; JP 3919822 B2 20070530; PT 937018 E 20020228; WO 9817613 A1 19980430

DOCDB simple family (application)

US 28479099 A 19990420; AT 97945839 T 19971015; DE 19644250 A 19961024; DE 59704475 T 19971015; DK 97945839 T 19971015; EP 9705689 W 19971015; EP 97945839 A 19971015; ES 97945839 T 19971015; JP 51892198 A 19971015; PT 97945839 T 19971015